I held this one back until I had sufficient data to prove one way or another and not just an anomaly. After shooting quite a few rifles this morning with Cutting Edge bullets plus all the other testing previously I have found they get approximately 75-100 fps more velocity than standard lead core bullets of the same weight. At first I thought it may be an anomaly with limited data. But now I have quite a bit of data with the 225 grain 338 bullets and the 180 grain 30 caliber bullets. Several different rifles loaded with known accuracy loads for lead core bullets all chronographed 75-100 fps faster on average with the same weight Cutting Edge bullets. No, I do not own stock in Cutting edge and I can show reciepts where I paid for the bullets, not freebies. Also it seems I have less pressure with the CE bullets than with lead core bullets at the same powder charge. I have loaded beyond my max with lead core bullets without pressure signs with the CE bullets. These are just some quirks I am finding out testing these new bullets. So far I have shot them in 338 SIN, 338-378 wby, 338 Lapua, 338-300 RUM, 338 RUM, 340 wby and 300 winchester. I feel sufficient data that I can start mentioning some of these quirks. As far as listed BC. I can guarantee with my rifles the 225 grain M62 bullet is at least the listed .64 BC. I have tested it out to 1000 yards on several occasions and out of my rifles shoots flatter than the listed .64. I shot the 180 grain C21 bullet this morning at 1000 yards and after one test it was definitely the listed .6 at 3376 fps. I know some guys have been reporting velocity gains with the GS custom bullets which are also lathe turned and they advertise this on the gs website also. I shot some GS 177 grain 30 caliber bullets over 3500 fps out of my 300 RUM which was more than 50 fps faster than the lead core bullets I had been shooting.